An Identity-Based Security Scheme for a Big Data Driven Cloud Computing Framework in Smart Grid

In this paper, a big data driven, cloud based information and communication technology (ICT) framework for smart grid is proposed. The proposed ICT framework is to provide price forecast to customers and energy forecast to utility company. Cloud computing and big data analytics are introduced to assist local control centers dealing with large amount of data. However, public cloud and transmission over internet may be vulnerable in security, especially privacy preserving and authentication. To secure the proposed framework, we propose an identity-based signcryption (IBSC) security scheme. The proposed IBSC scheme provides confidentiality and non-repudiation since it performs simultaneously the functions of encryption and digital signature. Moreover, data integrity is also provided in the IBSC scheme. Identity-based signature and key distribution are presented as extended applications from the IBSC scheme. The security and performance of the proposed IBSC scheme are analyzed. Efficiency of the proposed IBSC scheme is demonstrated with an implementation using modified Weil pairing over an elliptic curve.